[R] How can I 'predict' from an nls model with a fit specified for separate groups?

an only seem to get the predictions for the 1st specified level of the grouping variable. I promise that I have read the documentation, and have tried a number of things, but cannot get the correct predictions. Thank you for any help. Yours - Stuart -- /*---------

[R] Rotating characters in text

For labelling a plot, I am trying to rotate a character string using text() so that characters are upright and reading down, for example, ... L i k e t h i s . It appears that par crt does not work with text. Does anyone have any other suggestions. Thanks! Yours - Stuart Rosen